Plow



' E. B. KAHN.

PLow. i APPLICATION FILED FEB. 14V, 1919. 1 358 158, Patented Nov. 9,1920.y

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E. B. KARN.

PLOW; APPLICATION FILED FEB. I4 1919.

Patented Nov. 9, 1920.

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E. B. KARN.

PLOW. A APPLICATION FILED FEB. I4, 1919.

1,358, 1 Patented Nov. 9, 1920.

3 SHEETS-SHEET 3.

A TTURNEVS UNITED STATES IPATENT OFFICE.

EDWIN B. KARN', 0F PARMA, IDAHO.

PLOW.

To all whom t may concern:

Be it known that I, EDWIN B. KARN, seitizen of the United States, and a resident of Parma, in the county of Canyon and State of Idaho, have invented certain new and useful Improvements in P10-ws, of which the following is a specification.

My invention is an improvement in plows of the character adapted to be drawn behind a tractor, and especially designed for use on irrigated land, and in any other character of land where it is desirable to throw all the furrows the same way, wherein a plurality of gangs of plows is provided, oppositely arranged and adapted to be brought into operative position in alternation, and connected to the tractor in such manner that they may be elevated out of contact with the ground and reversed to bring either gang into operative position.

ln the drawings:

Figure 1 is a side view of the improved plow;

Fig. 2 is a top plan view; v

Fig. 3 is an end view of the connecting plate and beam.

F ig. l is a side View 'with the parts in section;

F ig. 5 is a section taken substantially on the line 5--5 of Fig. 1;

F ig. G is alperspective View of the orward end ot the beam.

The present embodiment of the invention is shown in connection with a tractor, comprising a chassis or frame 1, supported by a rear axle 2 having secured thereto wheels 3. 'llhe axle carries a gear wheel 4, which is driven by a pinion 5 on a countershaft 6 journaled on the frame, and the countershaft carries a sprocket wheel 7, which is connected by a chain 8 with a similar wheel 9 on the driving shaft of the motor 9a, in the present instance an internal combustion engine.

The gangs 10 and 10a of plows are secured to beams 11, which are rigidly secured to a cylindrical beam 12, the beams 11 being arranged at opposite sides of the beam 12 and connected thereto by rings 13, as shown, so that they are rigid with the beam 12 and turn therewith when the said beam is turned. rlhis beam 12 is provided at its forward end with'a pair of angle bars 14, the said bars being oppositely arranged and each consisting of one portion riveted or otherwise secured to the beam 12 which is a hollow Specification of Letters Patent.

Patented Nov. 9, 1920.

Application, led February 14, 1919. Serial No. 276,932.

cyhnder, and another portion offset internallv with respect to the rst named portion. These mwardly offset portions of the angle bars. are spaced apart from each other and recelve between them a link or coupling pin 15, the sald pln b eing pivoted to the offset portions. Thls pln or link 15 is journaled 1n a heavy lug 16 on a swinging plate 17 the sald plate 17 being connected to the frame of the tractor.

The plate 17 hasjournal pins 18 at its ends, and these pins 18 have journaled thereon links 19 which extend forwardly and upwardly, and are hinged to a housing 2 on the rear axle. Other links 20 are journaled at their lower ends on the pins and these links are plvoted at their upper ends to arms 21 of elbow levers or bell cranks, the said elbowlevers or bell cranks consisting of the arms 21 and other arms 22, and each of the levers is journaled on the trame of a tractor, as indicated at 23. Each lever has latch mechanism coperating with a toothed segment 24.- rigid with the frame for holding the lever in adjusted position, and it will be evident that by means of the levers the swinging plate 17 maybe raised or lowered.

A ring 25 encircles the forward end of the beam 12, the said ring being secured at diametrically opposite points to the angle bars 14, as indicated at 26, to form a rigid connection with the beam. This ring 25 is provided in its forward edge with notches 27, and these notches are adapted to be engaged by an arc shaped bar 28 arranged upon the swinging plate 17. This bar is provided at each end with an angular portion 29, and one of these portions is pivoted to the plate 17, as indicated at 30. rl`he other portion is adapted to engage beneath a clip 31 on the swingingplate, and a coil spring 32 normally acts to draw the Jfree end of the bar into engagement with the notches of the ring, one end of the spring being connected to the angular portion 29 adjacent to the clip 31 and the other end to the swinging plate.

A link 33 is pivoted to the said angular portion of the bar at the forward end of the link, and the rear end of the link is pivoted to the lower end of a lever 35 which is pivoted intermediate its ends on one of the arms of a yoke comprising a body 36 and arms 37. By means of this lever the bar 28 may be moved to disengage it from the notches 27, or to move it into engagement with the said notches. The lower ends of the arms of the yoke are rigid with longitudinally extending framebars 38 which, at their forward ends, are rigid with the swinging plate 17. These frame members 38 are at the level of the under face of the rotating beam 12, and brackets 39 extend upwardly from the frame members at the rear ends thereof, the said brackets being connected above the beam. The yoke 36 is braced against the frame members by inclined braces 40, and the frame members are connected below the beam at the brackets 39 by a cross bar 41.

A flexible member 42, as, for instance, a chain, is connected with the', brackets 39 above the beam, and this chain extends forwardly over a pulley 43 on the frame of the tractor to a drum 44 upon which the chain winds. rlhe drum is on the countershaft 6, being loosely journaled thereon and adapted to be connected therewith by a friction clutch, the movable member 45 of which is feathered on the countershaft and coperates with the fixed member forming a part of the drum. The clutch is shifted by means of a lever 46, and it will be obvious that when the drum 44 is clutched to the countershaft the flexible member or chain 42 will be wound up to lift the beam and to swing the plows into inoperative position out of engagement with the ground. When so swung v'the beam 12 may be rotated to reverse the gangs, by means of a sprocket chain 47. This chain passes around the beam 12, and the said beam has a pin 48 extending radially therefrom and engaging within a link of the chain. The chain also passes over a sprocket wheel 49 secured to a crank shaft 50 which is journaled in lugs 51 dependlng from the body 36 of the yoke 36-37. When one gang of plows is in operative position, the pin will extend horizontally from one side of the beam, so that the beam may be swung a half rotation without disengaging the pin from the link of the chain with which it is engaged.

The drum 44 has a ratchet wheel 52 rigid therewith, and this .ratchet wheel is engaged by a click/or pawl 53 pivoted on the frame 1. By means of the click the drum may be held from retrograde movement during the turning of the plows.

In operation, with the parts in the position of Fig. 1, a double furrow will be thrown to the left, when the plows constitute a gang. When the driver reaches the end of the field, he will operate the clutch 45 to connect the drum 44 to the counter shaft 6, the motor running causing the drum to wind up the chain 42, and the gang of operative plows will be lifted out of contact with the ground. When so lifted, the operator swings the lever 22 in a direction to release the bar 28 from the notches of the ring 25, and by means of the crank 5G imparts a half rotation to the main beam 12. The gang of plows l0n is now swung upwardly and the gang of lows 10 is swung into operative position. hese plows, however, are arranged to throw the furrow in the opposite direction to the plows 10a and the furrows laid by these plows may be laid alongside the furrows last made by the plows l0El and they will be thrown in the same direction. The coupling pin or link 15 permits free lateral swinging movement of the plows and tractor with respect to each other, and the arrangement of the plate 17 permits vertical swinging of the lows and tractor with respect to each other.

hus the plows may follow closely the contour of the ground without any danger of breakage of the connection between the tractor and the plows, the connection being, in effect, a universal joint connection. Because of the friction clutch which connects the drum with the counter shaft 6, the plows may be gradually lowered, the clutch being used to check the downward movement of the plows. When the turn has been made, and the operator wishes to lower the plows into operative position, he will release the click 53, holding the plows by the clutch lever 46. As soon as he loosens the clutch, the drum will begin to turn in the reverse movement, and as soon as the downward movement of the plows commences the lever 35 may be released. Then the bar 28 will be drawn back against the edge of the ring 25 and as soon as the main beam reaches the normal position in which the plows should stand, the bar will be drawn into the notches 27 and the parts will be ready for operation.

ll claim:

1. In combination with a wheel supported main frame, of an auxiliary frame supported by the main frame below and behind the same and mounted to swing vertically and to rook on an axis transverse to the main frame, means for raising and lowering the forward end of the auxiliary frame, a beam mounted to rotate on the auxiliary frame and extending longitudinally of the main frame and having at its rear end a plurality of series of gangs of plows, said gangs being oppositely arranged, means on the frame for rotating the beam, a latch on the frame for engaging the beam to hold the beam from rotation and having means for releasing the same, a drum on the main frame, a flexible connection between the rear end of the auxiliary frame and the drum and winding on the drum for raising the rear end of the said frame, means for .connecting the drum with a motor for driving the drum, and releasable means for holding lthe drum from reverse rotation, said means for connecting the drum to the motor being a frictional clutch to permit the rear end of the auxiliarv frame and the beam to be gradually lowered.

2. In combination with a wheel supported main frame, of an auxiliary frame supported by the main frame below and behind the same and mounted to swing vertically and to rock on' an axis transverse to the main frame, means for raising and lowering the forward end of the auxiliary frame, a beam mounted to rotate on the auxiliary frame and extending longitudinally of the main frame and having at its rear end a plurality of series of gangs of plows, said gangs being oppositely arranged, means on the frame for rotating the beam, a latch on the frame for engaging the beamto hold the beam from rotation and having means for releasing the same, a drumon the main frame, a flexible connection between the rear end of the auxiliary frame and the drum and winding on the drum for raising the rear end of the said frame, means for connecting the drum with a motor for driving the auxiliary drum, and releasable means for holding the drum from reverse rotation.

3. In combination with a main frame, of an auxiliary frame supported by the main frame below and behind the same and mounted to swing vertically and to rock on an axis transverse to the main frame, means for raising and lowering the front end` of the auxiliary frame, means for raising the rear end of the frame, a beam extendlng longitudinally of the auxiliary frame and carryving a plurality of series of gangs of plows, vmeans on the auxiliary frame for rotating the beam, and releasable means for holding the beam fromrotation, said beam being connected to the front end of the auxiliary frame to swing laterally with respect thereto.

4.In combmation with a main frame, of an auxiliary frame supported by the main frame below and behind the same and mounted to swing vertically and to rock on an axis transverse to the main frame, means forraising and lowering the front end of the auxiliary frame, means controlled by the motor of the tractor for raising the rear end of the auxiliary frame, a beam extending longitudinally of the auxiliary frame and carrying a plurality of series of gangs of plows, means on the auxiliary frame for rotating the beam,

and releasable means for holding the beam ,from rotation, means for connecting the auxiliary frame raising means to a motor, and means for holding the auxiliary frame raised. y

5. In combination with a main frame, of an auxiliary frame su ported by the main frame below and behin the same and mounted to swing vertically and to rock on an axis transverse to the main frame, means for raising and lowering the front end of the auxiliary frame, means for raising the rear end of the auxiliary frame, a beam extending longitudinally of the auxiliary frame and carrying a plurality of series of gangs of plows, means on the auxiliary frame for rotating the beam, releasable means for holding the beam from rotation, and means for connecting the auxiliary frame raising means to a motor said means being arranged to slip to permit the gradual lowering of the auxiliary frame.

EDWIN B.' KARN. 

